Great Dog Bison Lung Treats (Sourced & Made in USA) Great Dog Bison Lung Treats are sourced from grass fed, American Bison, loaded with flavor, light, and voluminous Great Dog Bison lung is a fantastic value compared to freeze dried treats Makes a great training treat and is suitable for dogs of all sizes--break the irregular-sized pieces into smaller pieces to suit your needs Any way you use Great Dog Bison Lung Treats, your dog won't be disappointed! Slow roasted at one of our human grade facilities--no added salts, soaks, washes, nitrates, sorbates, BHA, or BHT